You all have the right to write #FreeSoftware, and you write whatever you want.
And when you look at what software other people are writing, keep it in mind, that they have the right to write whatever software they feel like.
They even have all rights to license it under #MIT or #BSD licenses, because everyone has the right to make objectively wrong decisions, too
https://www.reddit.com/r/linux/comments/1jjo1hv/a_tremendous_feature_of_open_source_software_is/